When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution(dissolving) can be determined using a coffee cup calorimeter.ThermometerCardboard orIn the laboratory a general chemistry student finds that when 3.38 g of CuCl,(s) areStyrofoam liddissolved in 114.10 g of water, the temperature of the solution increases from 25.37 to27.99 °C.The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant)was determined in a separate experiment to be 1.60 J/°C.NestedStyrofoam cupsBased on the student's observation, calculate the enthalpy of dissolution of CuCl2(s) inkJ/mol.- Reactionoccurs inAssume the specific heat of the solution is equal to the specific heat of water.solution.AHdissolutionkJ/molkc Cengage Ln

Heat absorbed by calorimeter=Heat capacity of calorimeter×Temperature change…

/hen a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution lissolving) can be determined using a coffee cup calorimeter. Thermometer Cardboan the laboratory a general chemistry student finds that when 3.38 g of CuCl2(s) are Styrofoa ssolved in 114.10 g of water, the temperature of the solution increases from 25.37 to 7.99 °C. he heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) as determined in a separate experiment to be 1.60 J/°C. Nest Styr ased on the student's observation, calculate the enthalpy of dissolution of CuCl2(s) in I/mol. Reac ocCL ssume the specific heat of the solution is equal to the specific heat of water. solu Haissolution kJ/mol

/hen a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution lissolving) can be determined using a coffee cup calorimeter. Thermometer Cardboan the laboratory a general chemistry student finds that when 3.38 g of CuCl2(s) are Styrofoa ssolved in 114.10 g of water, the temperature of the solution increases from 25.37 to 7.99 °C. he heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) as determined in a separate experiment to be 1.60 J/°C. Nest Styr ased on the student's observation, calculate the enthalpy of dissolution of CuCl2(s) in I/mol. Reac ocCL ssume the specific heat of the solution is equal to the specific heat of water. solu Haissolution kJ/mol

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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A chemist dissolved an 11.4-g sample of KOH in 100.0 grams of water in a coffee cup calorimeter. When she did so, the water temperature increased by 25.1 "C. Based on this, how much heat energy was required to dissolve the sample of KOH? Assume the specific heat of the solution is 4.184 J/g °C. . Greaction= 4 Calculate the heat of solution (AH) for KOH in kJ/mol. heat of solution= kJ/mol
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When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution (dissolving) can be determined using a coffee cup calorimeter. In the laboratory a general chemistry student finds that when 14.11 g of CsCl(s) are dissolved in 119.20 g of water, the temperature of the solution drops from 25.67 to 22.23 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.55 J/ °C. Based on the student's observation, calculate the enthalpy of dissolution of CSCI(s) in kJ/mol. Assume the specific heat of the solution is equal to the specific heat of water. AH dissolution= kJ/mol
When 17.98 g of calcium chloride (CaCl2) is dissolved in 681.87 g of water in a coffee-cup calorimeter at 26.4°C, the temperature increased to 28.4 °C. Assuming that the specific heat of the mixture is the same as the specific heat of pure water (4.184 J/g-°C), calculate the AH (in kJ/mol CaCl2) in the dissolution process. MW of CaCl2 = 110.9g/mol CaCl2 (s) →→ Ca+2 (aq) + 2 CI¯ (aq) Show your complete solution. Express your answer in two decimal places.
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When 6.54 grams of Zn is placed in 500.0 mL of 1.00 M CuSO4(aq) in a coffee cup calorimeter, it reacts completely to displace copper. The temperature of the solution rises from 20.0˚C to 30.4˚C. Assume the coffee cup itself gains no heat and that the solution has the same density (1.00 g/mL) and specific heat (4.184 J/g˚C) as pure water. (a) How much heat does the solution gain during this reaction? (in J)
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